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Finding the Fourth Proportional to 48,339.32, 66,740.81 and 36,988.56

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Solution

The fourth proportional to 48,339.32, 66,740.81 and 36,988.56 is: 51,069.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,339.32 : 66,740.81 = 36,988.56 : x
  2. Step 2: Convert to fraction form
    48,339.32/66,740.81 = 36,988.56/x
  3. Step 3: Cross multiply
    48,339.32x = 66,740.81 × 36,988.56
  4. Step 4: Simplify right side
    48,339.32x = 2,468,646,270.19
  5. Step 5: Solve for x
    x = 2,468,646,270.19/48,339.32
  6. Step 6: Final answer
    x = 51,069.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.